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| High-end Audio Forum Discussion of high-end audio. (This is where our "Sorry about your wallet" slogan will ring most true.) |
06-18-2009, 04:08 PM
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Headphoneus Supremus
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Join Date: Jan 2006
Location: Bay Area, CA
Posts: 5,710
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Quote:
Originally Posted by jpelg
Nik - do you know what exactly was done to "improve" the driver?
Danny - are you aware of what is/can be done to the drivers to "improve" them?
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X2 This would be interesting to know.
__________________
Rob
headfi feedback
audiogon feedback
Von Schweikert VR4 jr / AKG K-1000 / Grado HP-2 / Grado GS-1000 Portable - Imod - Xin Supermini III - ALO Cryo mini to mini - Shure E500/Audéo PFE
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06-18-2009, 07:43 PM
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Join Date: Apr 2002
Location: Italy
Posts: 2,722
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I don't know what Joe has done on my HP2, just to know that the simply restore was 1200 US$ and the "improve" was 300 U$ more (1500 U$).
__________________
Linn Sondek CD 12
Grado HP-2i (HP2 restored and improved by Joseph Grado) + Custom two box driver by Sivieri
Nelson Pass INT-150
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Siltech Emperor II 1m speaker cable
Siltech Compass Lake SATT IC cable (.75 xlr)
Shunyata Anaconda power cords (helix alpha & Vx)
Shunyata Hydra model-8 power conditioner
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06-25-2009, 01:50 AM
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100+ Head-Fi'er
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Join Date: Jan 2006
Location: Charlotte, NC
Posts: 359
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With my pair, Joe did the rewiring and also added some "magic" (according to Joe) compound to the enclosures. I don't know how much the wiring or compound improved the sound and if the improvement is mainly due to one or the other or a combination of both. Regardless, this has elevated the HP1000 to a new level and the difference was significant and easy to discern.
I talked with Joe last night and asked him why he didn't come up with this improvement sooner. He stated he didn't think there was a need until he invented his new microphone which records in unprecedented detail and these upgraded phones make it possible to hear the potential of the microphone.
Personally, I disagree regarding the timing of the mod since it made such a great difference on any recording I played through the phones. In short, better late than never but 10 years ago would have been better than one month ago. As far as I know, there are a few others with this upgrade but most are professional audio engineers. Perhaps some of them will chime in on this topic.
It's nice to have an 85 year old Giant of Audio still caring and contributing to our hobby in such a wonderful way.
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06-25-2009, 02:08 AM
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Headphoneus Supremus
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Join Date: Jan 2006
Location: Bay Area, CA
Posts: 5,710
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Makes me want to send them to him! My drivers are taught and in great shape. It would be worth the $300 for next level sound.
__________________
Rob
headfi feedback
audiogon feedback
Von Schweikert VR4 jr / AKG K-1000 / Grado HP-2 / Grado GS-1000 Portable - Imod - Xin Supermini III - ALO Cryo mini to mini - Shure E500/Audéo PFE
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06-25-2009, 03:51 PM
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Headphoneus Supremus
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Join Date: Jan 2006
Location: Rotterdam city, The Netherlands
Posts: 4,026
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Would you be so kind to give us some idea about the sonic differences between stock and upgraded one please.
__________________
Source:Unison Research Unico CD(2xECC82) Amplifier:PrimaLuna ProLogue Two Ear speakers:AKG K1000 Cables:Van Den Hul D102III Hybrid XLR/DH Labs Silver Sonic BL-1 Series II/Wyvern Audio-Cyprium One LOD
Portable@ iAudio X5L 30G >Go-Vibe Petite DAC>ATH ES7/Koss KSC75
member of The NL Group
My feedbacks
http://www.head-fi.org/forums/f12/blackmore-169679/
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06-25-2009, 04:15 PM
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Headphoneus Supremus:
Moderator:
Needs a regular fix of 'Fi.
'06 National Meet Co-Coordinator
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Join Date: Jan 2002
Location: The Elm City
Posts: 7,579
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06-25-2009, 06:35 PM
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Headphoneus Supremus
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Join Date: Feb 2005
Location: East Bay, CA
Posts: 2,831
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oh wow  It is a crime that these headphones aren't produced anymore. A crime!
__________________
photographs
AKG K240 Sextett EP • Yamaha YH-100 & YH1 • Denon AHD6 • Fostex T10 • HD650
MacPro --> Presonus Firebox --> SOHA --> headphones
on the go.... ipod classic -> AKG K81dj (w/Obama Stickers) • recabled KSC75
SPEAKERS: Mac Pro -> "Ze Makken-Housen" Mackie HR624
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06-27-2009, 05:37 PM
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Headphoneus Supremus
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Join Date: Sep 2006
Location: Montréal, Canada
Posts: 2,283
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Quote:
Originally Posted by DannyB
With my pair, Joe did the rewiring and also added some "magic" (according to Joe) compound to the enclosures. I don't know how much the wiring or compound improved the sound and if the improvement is mainly due to one or the other or a combination of both. Regardless, this has elevated the HP1000 to a new level and the difference was significant and easy to discern.
I talked with Joe last night and asked him why he didn't come up with this improvement sooner. He stated he didn't think there was a need until he invented his new microphone which records in unprecedented detail and these upgraded phones make it possible to hear the potential of the microphone.
Personally, I disagree regarding the timing of the mod since it made such a great difference on any recording I played through the phones. In short, better late than never but 10 years ago would have been better than one month ago. As far as I know, there are a few others with this upgrade but most are professional audio engineers. Perhaps some of them will chime in on this topic.
It's nice to have an 85 year old Giant of Audio still caring and contributing to our hobby in such a wonderful way.
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Any idea on the price/time frame of this only tweak ? My pair has a lot of brownish goop around the enclosures, is that it ?!
__________________
Team Joe Grado |Team 7318 |Team Minimalist |Team Reality |Team Budget |Team SEARCH
Feedback : Head-Fi / eBay
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06-27-2009, 11:44 PM
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100+ Head-Fi'er
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Join Date: Jan 2006
Location: Charlotte, NC
Posts: 359
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I will try to "extract" some information about the "magic dampening compound" but Joe is usually very reluctant about discussing this stuff, and understandably so. My understanding is it something new that he uses and not the original stuff. Regardless, I'll also try to see what his timetable is regarding turnaround for doing the mod.
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06-28-2009, 01:55 AM
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Headphoneus Supremus
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Join Date: Sep 2006
Location: Montréal, Canada
Posts: 2,283
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Quote:
Originally Posted by DannyB
I will try to "extract" some information about the "magic dampening compound" but Joe is usually very reluctant about discussing this stuff, and understandably so. My understanding is it something new that he uses and not the original stuff. Regardless, I'll also try to see what his timetable is regarding turnaround for doing the mod.
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I understand that!
A turnaround time along with a price for this only mod ($300?) would be great, yeah.
Thank you for responding so fast.
__________________
Team Joe Grado |Team 7318 |Team Minimalist |Team Reality |Team Budget |Team SEARCH
Feedback : Head-Fi / eBay
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06-29-2009, 12:00 AM
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100+ Head-Fi'er
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Join Date: Jan 2006
Location: Charlotte, NC
Posts: 359
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More Info on the HP1000 upgrade from Joe G.
According to Joe, the upgrade is a two part process. First, he (and this is his terminology) "rehabilitates" the headphones and specifically the casing/metal and replaces the drivers and does a few other things. Then he does the rewiring/modding. It apparently is rather involved and time consuming. The cost is $1200 for the "rehab" and $800 for the rewiring/modding; $2000 total.
He said should anyone be interested in talking with him further about it he would be happy to do so and explain more about what is involved and then perform the mods should you want to proceed. Just PM me and I'll forward his telephone number to you. He hates email.
Finally, I believe there was some discussion somewhere about there no longer being any drivers available. This is not true. Joe said he has drivers at this time.
I hope the above information helps.
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06-29-2009, 01:03 AM
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Headphoneus Supremus
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Join Date: Nov 2008
Location: Europe
Posts: 1,627
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Wow now that IS expensive!
__________________
When the audio equipment takes priority over the music, the way the music sounds is more important than the sound of the music. Check my profile to see my rig.
Want to know the "truth" behind cables? Go HERE
Finished my search!! No more spending money! The Ergo 2 are keepers! Now to sell what I no longer use.
-- Team Grado-- -- Team Phonak-- -- Team Snake Oil--
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06-29-2009, 02:03 AM
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Headphoneus Supremus
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Join Date: Jan 2006
Location: Bay Area, CA
Posts: 5,710
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Quote:
Originally Posted by Bullseye
Wow now that IS expensive!
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Indeed.
A used HP-1000 = $1,500 (minimum) + $2,000 in mods, $3,500... .ouch
__________________
Rob
headfi feedback
audiogon feedback
Von Schweikert VR4 jr / AKG K-1000 / Grado HP-2 / Grado GS-1000 Portable - Imod - Xin Supermini III - ALO Cryo mini to mini - Shure E500/Audéo PFE
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06-29-2009, 02:08 AM
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Headphoneus Supremus
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Join Date: May 2003
Location: Montreal, QC
Posts: 1,963
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Unless you're lucky enough to have a broken HP-2  or can find a broken HP-2 for cheap.
Its wierd to see so many difference prices quoted. How much for just some magic goop 
__________________
MSB Power DAC → ECSS → Grado HP2 or TriodeLab 2A3 → Tetra 120U Speakers
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06-29-2009, 02:37 AM
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Headphoneus Supremus
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Join Date: May 2006
Location: NC
Posts: 2,139
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wow this is insane, and to be able to hear well enough at 80+ to do these mods, he is truly a magician.
__________________
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eeeeeeeeeeeee\m./ d[-_-]b \.m/
THE Ultimate Headphone Review - Learn How to Truly Hear Your Headphones
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